U+66DC "曜" CJK Unified Ideograph-# Unicode Character
Unicode Version 17.0
曜
U+66DC "曜" CJK Unified Ideograph-# is a Chinese character that signifies "shine," "glow," or "radiance," and is most famously used in East Asian languages as the second character in the word "曜日" (yōbi in Japanese, yàorì in Chinese), which designates the days of the week, such as 月曜日 for Monday or 日曜日 for Sunday. In classical Chinese, it often appears in compounds related to celestial bodies and brightness, and its structure combines the radical for "sun" on the left with a phonetic component on the right. This character thus serves both a practical and poetic role, linking the concept of luminous celestial bodies to the systematic naming of weekdays in modern Japanese and occasionally in Korean and Chinese contexts.
General Properties
| Code Point | U+66DC |
| Version Added | 1.1 |
| Name | CJK Unified Ideograph-# |
| Block | CJK Unified Ideographs |
| General Category | Other Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
Encodings
| HTML Decimal Encoding | 曜 |
| HTML Hex Encoding | 曜 |
| UTF-8 Encoding | 0xE6 0x9B 0x9C |
| UTF-16 Encoding | 0x66DC |
| UTF-32 Encoding | 0x000066DC |
| C/C++/Java Escape | \u66dc |
Unicode Properties
Unihan Properties
| kBigFive | C260 |
| kCCCII | 39525B |
| kCNS1986 | 1-764C |
| kCNS1992 | 1-764C |
| kCangjie | ASMG |
| kCantonese | jiu6 |
| kCihaiT | 647.603 |
| kCowles | 1407 |
| kDaeJaweon | 0871.200 |
| kDefinition | glorious, as sun; daylight, sunlight; one of the seven planets of pre-modern astronomy (the sun, the moon, Mercury, Venus, Mars, Jupiter, and Saturn) |
| kEACC | 4B525B |
| kFanqie | 弋照 |
| kFenn | 57H |
| kFennIndex | 619.05 655.02 |
| kFourCornerCode | 6701.4 |
| kGB0 | 7455 |
| kGB1 | 7455 |
| kGSR | 1124i |
| kHangul | 요:0N |
| kHanYu | 21540.050 |
| kHanyuPinyin | 21540.050:yào |
| kIICore | AGTJHKMP |
| kIRGDaeJaweon | 0871.200 |
| kIRGHanyuDaZidian | 21540.050 |
| kIRGKangXi | 0501.110 |
| kIRG_GSource | G0-6A57 |
| kIRG_HSource | HB1-C260 |
| kIRG_JSource | J0-4D4B |
| kIRG_KPSource | KP0-FAA9 |
| kIRG_KSource | K0-6878 |
| kIRG_TSource | T1-764C |
| kJapanese | ヨウ かがやく |
| kJoyoKanji | 2010 |
| kKoreanName | 2015 |
| kTGH | 2013:6331 |
| kJapaneseKun | HIKARI KAGAYAKU |
| kJapaneseOn | YOU |
| kJis0 | 4543 |
| kKangXi | 0501.110 |
| kKorean | YO |
| kMainlandTelegraph | 2565 |
| kMandarin | yào |
| kMatthews | 7305 |
| kMojiJoho | MJ013454 MJ013454:E0102 MJ013453:E0103 |
| kMorohashi | 14227' 14227':E0102 14227:E0103 |
| kNelson | 2112 2162 |
| kPhonetic | 1327 |
| kRSAdobe_Japan1_6 | C+3893+72.4.14 V+14077+72.4.14 V+20141+72.4.5 V+20141+96.5.4 |
| kRSUnicode | 72.14 |
| kSBGY | 413.46 |
| kSemanticVariant | U+71FF<kCowles U+8000<kCowles U+2EC9D |
| kSMSZD2003Index | 296.12 |
| kSMSZD2003Readings | yào粵jiu6 |
| kTaiwanTelegraph | 2565 |
| kTang | iɛ̀u |
| kTGHZ2013 | 428.170:yào |
| kTotalStrokes | 18 |
| kUnihanCore2020 | GHJKMPT |
| kXerox | 263:133 |
| kXHC1983 | 1345.010:yào |